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seven332 committed 2015-08-03 18:17:59 +08:00
1 parent ac39947d6a
commit 1addfe2b66
47 files changed
+1272 -519
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app/src/main/java/com/hippo/widget/NoopLayout.java
+43
View File
@@ -0,0 +1,43 @@
/*
* Copyright 2015 Hippo Seven
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hippo.widget;
import android.content.Context;
import android.util.AttributeSet;
import android.view.ViewGroup;
/**
* An empty {@link ViewGroup}
*/
public class NoopLayout extends ViewGroup {
public NoopLayout(Context context) {
super(context);
}
public NoopLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
public NoopLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
}
}
app/src/main/java/com/hippo/widget/recyclerview/LinearDividerItemDecoration.java
+84 -26
View File
@@ -44,6 +44,8 @@ public class LinearDividerItemDecoration extends RecyclerView.ItemDecoration {
private int mPaddingStart = 0;
private int mPaddingEnd = 0;
private ShowDividerHelper mShowDividerHelper;
public LinearDividerItemDecoration(int orientation, int color, int thickness) {
mRect = new Rect();
mPaint = new Paint();
@@ -53,6 +55,10 @@ public class LinearDividerItemDecoration extends RecyclerView.ItemDecoration {
setThickness(thickness);
}
public void setShowDividerHelper(ShowDividerHelper showDividerHelper) {
mShowDividerHelper = showDividerHelper;
}
public void setOrientation(int orientation) {
if (orientation != HORIZONTAL && orientation != VERTICAL) {
throw new IllegalArgumentException("invalid orientation");
@@ -92,20 +98,43 @@ public class LinearDividerItemDecoration extends RecyclerView.ItemDecoration {
@Override
public void getItemOffsets(Rect outRect, View view,
RecyclerView parent, RecyclerView.State state) {
final int position = parent.getChildPosition(view);
final int position = parent.getChildLayoutPosition(view);
final int itemCount = parent.getAdapter().getItemCount();
if (mOrientation == VERTICAL) {
if (position == 0 && mShowFirstDivider)
outRect.top = mThickness;
outRect.bottom = mThickness;
if (position == itemCount - 1 && !mShowLastDivider)
outRect.bottom = 0;
if (mShowDividerHelper != null) {
if (mOrientation == VERTICAL) {
if (position == 0 && mShowDividerHelper.showDivider(0)) {
outRect.top = mThickness;
}
if (mShowDividerHelper.showDivider(position + 1)) {
outRect.bottom = mThickness;
}
} else {
if (position == 0 && mShowDividerHelper.showDivider(0)) {
outRect.left = mThickness;
}
if (mShowDividerHelper.showDivider(position + 1)) {
outRect.right = mThickness;
}
}
} else {
if (position == 0 && mShowFirstDivider)
outRect.left = mThickness;
outRect.right = mThickness;
if (position == itemCount - 1 && !mShowLastDivider)
outRect.left = 0;
if (mOrientation == VERTICAL) {
if (position == 0 && mShowFirstDivider) {
outRect.top = mThickness;
}
outRect.bottom = mThickness;
if (position == itemCount - 1 && !mShowLastDivider) {
outRect.bottom = 0;
}
} else {
if (position == 0 && mShowFirstDivider) {
outRect.left = mThickness;
}
outRect.right = mThickness;
if (position == itemCount - 1 && !mShowLastDivider) {
outRect.right = 0;
}
}
}
}
@@ -133,20 +162,33 @@ public class LinearDividerItemDecoration extends RecyclerView.ItemDecoration {
for (int i = 0; i < childCount; i++) {
final View child = parent.getChildAt(i);
final RecyclerView.LayoutParams lp = (RecyclerView.LayoutParams) child.getLayoutParams();
final int position = parent.getChildLayoutPosition(child);
if (i != childCount - 1 || mShowLastDivider
|| parent.getChildPosition(child) != itemCount - 1) {
boolean show;
if (mShowDividerHelper != null) {
show = mShowDividerHelper.showDivider(position + 1);
} else {
show = position != itemCount - 1 || mShowLastDivider;
}
if (show) {
final int top = child.getBottom() + lp.bottomMargin;
final int bottom = top + mThickness;
mRect.set(left, top, right, bottom);
c.drawRect(mRect, mPaint);
}
if (i == 0 && mShowFirstDivider && parent.getChildPosition(child) == 0) {
final int bottom = child.getTop() + lp.topMargin;
final int top = bottom - mThickness;
mRect.set(left, top, right, bottom);
c.drawRect(mRect, mPaint);
if (position == 0) {
if (mShowDividerHelper != null) {
show = mShowDividerHelper.showDivider(0);
} else {
show = mShowFirstDivider;
}
if (show) {
final int bottom = child.getTop() + lp.topMargin;
final int top = bottom - mThickness;
mRect.set(left, top, right, bottom);
c.drawRect(mRect, mPaint);
}
}
}
} else {
@@ -157,23 +199,39 @@ public class LinearDividerItemDecoration extends RecyclerView.ItemDecoration {
for (int i = 0; i < childCount; i++) {
final View child = parent.getChildAt(i);
final RecyclerView.LayoutParams lp = (RecyclerView.LayoutParams) child.getLayoutParams();
final int position = parent.getChildLayoutPosition(child);
if (i != childCount - 1 || mShowLastDivider
|| parent.getChildPosition(child) != itemCount - 1) {
boolean show;
if (mShowDividerHelper != null) {
show = mShowDividerHelper.showDivider(position + 1);
} else {
show = position != itemCount - 1 || mShowLastDivider;
}
if (show) {
final int left = child.getRight() + lp.rightMargin;
final int right = left + mThickness;
mRect.set(left, top, right, bottom);
c.drawRect(mRect, mPaint);
}
if (i == 0 && mShowFirstDivider && parent.getChildPosition(child) == 0) {
final int right = child.getLeft() + lp.leftMargin;
final int left = right - mThickness;
mRect.set(left, top, right, bottom);
c.drawRect(mRect, mPaint);
if (position == 0) {
if (mShowDividerHelper != null) {
show = mShowDividerHelper.showDivider(0);
} else {
show = mShowFirstDivider;
}
if (show) {
final int right = child.getLeft() + lp.leftMargin;
final int left = right - mThickness;
mRect.set(left, top, right, bottom);
c.drawRect(mRect, mPaint);
}
}
}
}
}
public interface ShowDividerHelper {
boolean showDivider(int index);
}
}